36e90b6928
Change-Id: I639ed933b789393fa50630af133e51abe3d7fae3 Reviewed-by: Jani Heikkinen <jani.heikkinen@theqtcompany.com> Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
118 lines
3.8 KiB
QML
118 lines
3.8 KiB
QML
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 2.0
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import QtMultimedia 5.0
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Item {
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id : zoomControl
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property real currentZoom : 1
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property real maximumZoom : 1
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signal zoomTo(real value)
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visible: zoomControl.maximumZoom > 1
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MouseArea {
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id : mouseArea
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anchors.fill: parent
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property real initialZoom : 0
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property real initialPos : 0
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onPressed: {
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initialPos = mouseY
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initialZoom = zoomControl.currentZoom
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}
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onPositionChanged: {
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if (pressed) {
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var target = initialZoom * Math.pow(5, (initialPos-mouseY)/zoomControl.height);
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target = Math.max(1, Math.min(target, zoomControl.maximumZoom))
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zoomControl.zoomTo(target)
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}
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}
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}
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Item {
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id : bar
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x : 16
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y : parent.height/4
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width : 24
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height : parent.height/2
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Rectangle {
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anchors.fill: parent
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smooth: true
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radius: 8
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border.color: "white"
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border.width: 2
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color: "black"
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opacity: 0.3
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}
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Rectangle {
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id: groove
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x : 0
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y : parent.height * (1.0 - (zoomControl.currentZoom-1.0) / (zoomControl.maximumZoom-1.0))
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width: parent.width
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height: parent.height - y
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smooth: true
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radius: 8
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color: "white"
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opacity: 0.5
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}
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Text {
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id: zoomText
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anchors {
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left: bar.right; leftMargin: 16
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}
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y: Math.min(parent.height - height, Math.max(0, groove.y - height / 2))
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text: "x" + Math.round(zoomControl.currentZoom * 100) / 100
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font.bold: true
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color: "white"
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style: Text.Raised; styleColor: "black"
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opacity: 0.85
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font.pixelSize: 18
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}
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}
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}
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